Shuttle



Patented June 3, 1930 JOHN -W. szrnwiinn, or PATERSON, NEW JERSEY simr'rnn Application filed October 24,

In loom shuttles of'the' type having spindles pivotally mounted so as to be raised for replenishing the weft supply there are usually two pairs of pins driven into the shuttle 6 body, one actingto support and for limiting the pivotal movement of the spindle and the other to support the spring which is used to keepthe spindle normally inthe depressed position and usually acts, also, to hold the 10 spindle in the elevated position when raised.

The working out of these pins when theshuttle is in use and the weakening of the shuttle body by them are known serious faults characterizing shuttles of this type, and the principal object of this invention is therefore to eliminate these faults. r v

The drawing shows, in-

Fig. 1 a plan of the improved shuttle;

I Fig. 2 a plan, with'the shuttle body broken m away to expose the spindle support and p a 1 Figs. 3 and 4 sections each on line 33,- Fig. 2, the spindle being depressed in Fig. 3 and'raised in Fig. 4:; I I

F ig. 5 a view similar to Fig. 2, withthe spindle removed and the support shown 1 dotted in the act of being removed; g

' Fig. 6 a section on line 66, Fig. 3, with the mounting and spindle removed;

Figs. 7 and 8 sections on lines 77 and f 88, Fig. 3, with the spindle removed; and

, Figs. 9 and 10 views of blanks of certain ofthe parts. r v

' The shuttle body 1 has, open'at top and} bottom, the usual filling-package cavity 2, 3

being a wooden quill forming the core of the' 1 package, though a paper cop tube may of course be used. a 1 V j The cavity has a mortise 4.10 m at the bottom butclosed at the top'by a wall 5 except where it 'adjoins the cavity,where it also is open at the top the inner end of said wallforms an'abutment 5F. Themortise-is enterable from the cavity by the hereinafterdescribed support, andits bottom; is formed bytwo lateral longitudinally'extending and opposite ledges 6, 6 (Fig. beinga crossledge at its outer end on which a part of said support, when entered, hasa bearing,as will appear; at its inner end themortisehas" two:

- metal, they spring 1928. Serial No. 314,598.

opposite vertical notches 7 and leading to these'from the exterior side surfaces of the body 1 are two reach holes 8.

From a stifi sheet metal blank 9 having the form shown in Fig. 9 a trough-shaped case, affording said support, is formed and this may have tongues 9* thereof, forming at one end of the case the ends of its side 7 walls, so bent'as to produce hooks to engage (Fig. 1) in the usual circumferential groove shown at the butt of the quill 3, and the tongues 9 forming at the other end of the case the ends of its side walls, bent from each other to produce detents 10. The sides of this case arezbridged by a pin or pivot 11,

whose ends (here) terminate flush with the side surfaces of the case and may beupset "or riveted. The case or support, may beslid into themortise, which it snugly fits, having first pressed its tongues 9 togethenand'it will then be held against returndisplacement by detents 10 engaging in the notches 7 into which, due to some elasticity present in the when the case is fully home in the mortise. pposite and inwardly open longitudinal slots forming jaws 12 exist in the case at its bottom (Figs. 3, 4 and- 9) because the lower edges of the tongues 9 are somewhat above the plane of the top surface oftheinter'mediate tongue 9.

The spindle spring is formed by bending the blank 13 in Fig. 10 into theshape shown in Fig. 3. Its wider end or'head 13 is entered into 'jaws 12, which it fits and which afford rigid means to support it, especially since 'theend of tongue 9 rests at its end on ledge 6 The spring thus forms in. effect an extension of the support, though itis detach-V able therefrom when the support is withdrawn from the mortise. a The ispindlelet is of the type having its butt iformedxas a hook 146, open upwardly, being adapted to receive pivot llfandbeing engageable'therewith or disengageable therefrom byghooking it thereon or unhooking-it therefrom, as will be apparent". The. spring bears at its free endaga'inst' the surface 148 of the spindle and tends to hold' it depressed,

whileg'permittingit to be raised to the position-of Fig.4; In orderzto provide "the p spindle butt with an adequate reach from its axis to the point 14 or heel thereof so that the spring may obtain a good purchase on the spindle when depressed and still permit the spindle to rise tongue 9 may be bent away and thus depressed at 9, thus aiiording clearance for the spring end when the spindle is elevated (see Fig. l).

My construction differs from others in its class in that, given a shuttle body having a mortise and a filling-package-carrying structure comprising a spindle pivoted at its butt on a transverse axis and a support for the spindle in whichthe same is pivoted, said support while said structure is so constituted is shiftable in the mortise and said body and support have a spring-interlock (9"7) normally opposing such shifting of the support. My construction further differs in that, given a shuttle body having a mortise and'a filling-package-carrying structure comprising a spindle pivoted at its butt on a transverse axis and a support for the spindle in which the same is pivoted and having spring means engaging the spindle and yieldingly retaining the latterat a definite point in its range of movement, said support I while said structure is so constituted is shiftable in the mortise and said body and'sllpport have a releasable interlock normally 0pposing said shifting, Thus three ofthe pins commonly .used in this type of shuttle are eliminated and it is even possible to mount the fourth pinor spindle pivotso' that holes in the shuttle body to receive thesameare unnecessary, wherefore the pin cannot work out and the shuttle body is not weakened. The removal of said structure may besaccomplished by entering suitable means at reach holes 8 for releasing the detents 10.

The spindle may be independently detached by first raising it to the position shown by full lines in Fig. 4 and then, utilizing the endof wall 5 as a fulcrum, forcing it to the dotted line position so that it clears the pin. 7 V I "Having thus fully described my invention, what I claim is:

'1. In combinatioma shuttlebody having a mortise and' a filling-package-carrylng structure comprising a spindle pivoted at'its button-a transverse axis and a support for the spindle in which the latter ispivoted, "said support while said structure is soconbutt on a transverse axis and a support stituted being shiftable in the mortiseand body and support having a spring-in- 'jterlock normally opposing such shifting of the support.

. 2. In combination, a shuttle body having a mortise and *a filling-package-carrying structure comprising a spindle pivoted at'fits or f the spindle in which the latter is pivoted,

"said support while said structure is so consti- 'tuted-being shift'able in the mortise and said "body and normally opposing such shifting of the support.

4. In combination, a shuttle body having a mortise and a 'filling packagacarrying structure comprising a spindle pivoted at its butt on a transverse axis-and a supportfor thespindle in which the latter is pivoted having rigidly connected therewith spring means engaging the spindle and yieldingly retainingit at a definite point in its rangeof pivotal movement, said structure while so constituted being shiftable in the mortise and said structure and body having portions thereof forming a releasable interlock normally opposing suchshifting of said struc ture. V

5. In combination,a shuttle body having a -mortise and, a. filling-packagemarrying structure comprising a spindle pivoted at its butt on a transverse axis andasu'pport for the spindle in which the latter is pivotedyhaving sprlng-means'engag-ing the spindleand yieldmgly retaining it at adefinite point in its range of pivotal movement, said su'port while-saidstructure is so constituted eing shift'able in the mortise and said body and support having a spring-interlock normally opposing suchsh-ifting'of the support.

6'. In combination, a shuttle body having a mortise,a sheet-metal supportslid into'the 'mortise and comprising spacedside walls and a portion stifiiy connecting them,-and a spindle 'plvoted at its butt on, an axis penetrating said walls and transverse tothe butt, said Walls having elastic-gripping-portions yieldingly engaged with said body in the mortise and holding the support against shifting therein.- o, a

7 In combination,ashuttle'body having a mortise,a sheet-metal support slid into the mortise and comprising spaced side walls and a portion stifily connecting them and also an 1 elastic extension extending between said walls, and a spindle pivotedat its butt on an axis penetrating said walls and transverse to the butt and having 'saidextension bearing there-against and normally holding the spindle at a definite point in its range of move ment, said walls having elastic gripping portions yieldingly engaged -withsaid body in 1 the mortise andholding the support against shiftingtherein. V

8. In combination, the fixed structure of a shuttle, a spindle pivoted at its butt on a transverse axis in said structure, and a plate spring engaging the spindle and yieldingly retaining it at a definite point in its range of movement, said structure having a slot substantially equalling in Width the thickness of the spring and receiving and holding a part of the spring remote from the portion thereof engaging the spindle against displacement With said portion by the spindle.

In testimony whereof I affix my signature.

JOHN W. STEWARD. 

